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Which of the following combination of length and cross-sectional area will give a certain volume of copper the least resistance?

A. 2L and1/2 A

B. Does not matter because the volume of copper remains the same

C. L and A

D. L and 2 A

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  1. Which of the following describes the action of a capacitor?
  2. Which of the following is also known as antiresonant circuit?
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    Any resistance R in a branch of a network in which a current I is flowing can be replaced by a voltage equal to IR. This states
  4. What is the complex impedance of a circuit with an absolute resistance of 300 ?
  5. A factor that states how much the resistance changes for a change in temperature?
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    An impedance given by 90 -45 is a/an ___ impedance.
  7. A 5 F capacitor charge to 5V has a stored charge equal to
  8. High resistance values are a consequence of the ___ of the film.
  9. At parallel resonancea the currents flowing through L and C are
  10. When two coils of identical reactance are in parallel without mutual inductancea the reactance of the…
  11. When two in-phase sine waves that have identical frequency and amplitude are added togethera then the…
  12. When capacitors are connected in parallela the total capacitance is
  13. The charge in the capacitor is stored at the
  14. The charging of a capacitor through a resistance follows what law?
  15. What is a closed path made of several branches of the network called?
  16. The reason why alternating current can induce voltage is
  17. Another term for superconductor.
  18. A capacitor opposes change in
  19. A capacitor is basically constructed of
  20. In a series circuit with unequal resistances the
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    Nortons theorem is ____ Thevenins theorem.
  22. For a triangular and sawtooth waveform the rms voltage or current equals
  23. What is expected when two 20 k a 1 watt resistor in parallel are use instead of one 10 k a 1 watt?
  24. For a linear circuita ___ voltage or current is used to calculate average power.
  25. Which of the following is the most popular waveform?
  26. In an inductive coila the rate of rise of current is maximum
  27. The symbol Q refers to
  28. A switch designed to have low capacitance between its terminal when open.
  29. What is the specific resistance of a pure germanium?
  30. Which of the following is a disadvantage of a wire-wound resistor?